General

The RN-134 “SuRF” board is a field ready, WiFi certified 802.11 b/g solution.   The SuRF board has the flexibility to connect directly to a standard RS232 interface or through the TTL UART interface to embedded systems.  The status LEDs and jumpers enable rapid prototyping and integrating into existing systems. 

The RN-134 is built upon Roving Networks' RN-131G WiFly-GSX module. The WiFly GSX module incorporates a 2.4GHz radio, processor, full TCP/IP stack, real-time clock, FTP, DHCP, DNS, and web server.  The RN-131G is the smallest, lowest power 802.11 b/g module available.  The module supports adhoc and enterprise networking modes.

In the simplest configuration the hardware only requires four connections (PWR, TX, RX, GND).  In cases where power is available on the RS232 DB9 connector of your application,  the RN-134 can be directly wired to create an instant serial to WiFi network link. 

Additionally, the analog sensor interface provides direct connections to send temperature, acceleration, and other analog data without requiring additional hardware. The WiFly GSX module is programmed and controlled with a simple ASCII command language.  Once the WiFly GSX is setup it can scan to find an access point, associate, authenticate, and connect over any WiFi network.

Developers will want to check out the RN-134-K WiFly development kit.  It includes the RN-134 module, RS232 cable with male DB9 connector, null modem, and 9V battery clip.  This helpful kit includes everything a developer needs to begin prototyping and designing with the RN-134 module.